Improvement in sash-fasteners



L-. P. TREADWELL. Sash-Fastener.

Patented Feb. 25, 1879.

INVENTOR (Amp/W wmnssns ATTORNEYS.

N.PETFRS, PHOTQ-LITHOGRAFHER, WASHINGTON. 0 (I.

U rrnn TATES PATENT IMPROVEMENT IN SASH-FASTENERS.

Specification forming part of Letters Patent No. 212,765, dated February25, 1879; application filed January 3, 1879.

To all 107mm it may concern:

Be it known that I, LEVI P. TREADWELL, of Daubury, in the county ofFairfield and State of Connecticut, have invented a new and usefulImprovement in l/Vindow Sash Fasteners, of which the following is aspecification:

Figure l is a vertical section of a window sash and frame to which myimprovement has been applied. Fig. 2 is a cross-section of the same,taken through the line a; 00, Fig. 1, showing the sash-fastener. Fig. 3is the same section as Fig. 2, but showing the sash unfastened.

Similar letters of reference indicate corresponding parts. W

The object of this invention is to furnish a simple and convenientfastener which shall be simple in construction, easily applied, andconvenient and reliable in use, and which may be used for fastening thesash whollyorpartly closed, as may be required.

The invention consists in the combination of the slotted sliding boltwith the lower sash, to which it is secured by the screw or pin, theupper sash being provided with recesses or sockets in its side rail andthe notched beads, as hereinafter fully described.

A represents the frame, B the lower sash, and (J the upper sash, of awindow. D represents the outer bead; E, the partingbead, and F, theinner bead, attached to the frame A, for securing the sashes B G inplace.

Upon the top or meeting rail of the lower sash, B, near one end, isplaced a bolt, G, in which is formed an inclined or curved longitudinalslot to receive the screw or pin H,

I that secures the said bolt to the said sash.

At the outer side of the outer end of the slot in the bolt G is formed anotch, as shown in Fig. 3.

'In the side of the side rail of the upper sasl1,0, are formed a numberof recesses or sockets to receive the end of thebolt G, and in the sideof the parting-bead E are formed a number of notches to receive the edgeof the bolt G.

In the edge of the inner bead, F, are formed a number of notches toreceive the notched end of the bolt G. With this construction, when thebolt G is pushed forward to fasten the sashes, the inclination of itsslot causes it to move laterally toward the frame A, so that its edgemay enter and slide through the notch in the parting-bead E, and itsforward end may enter the socket in the side rail of the upper sash, O.

The notch at the rear end of the slot in the 1 bolt G allows the rearend of the said bolt G to be then moved laterally toward the frame A,causing its notched edge to enter the notched edge of the inner bead, F,so that the bolt G may be fastened in place at the same time that itfastens the sashes B C.

To unfasten the bolt G, its rear end is first moved laterally to free itfrom the bead F, and the said bolt is then drawn back, freeing thesashes.

The bolt G should be made reversible, so that it may be applied toeither side of the sash B, as may be desired. A knob may be attached tothe rear end of the bolt G, for convenience in operating it.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination of the slotted sliding bolt G withthe lower sash, B, to which it is secured by the screw or pin H, theupper sash, 0, provided with recesses or sockets in its side rail, andthe notched beads E F, substantially as herein shown and described.

LEVI PENFIELD TREADWELL.

Witnesses BENEZET A. Houen, WILLIAM A. LEONARD.

